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If e^(4t) = 6, find an expression for t.

This question involves rearranging equations. In this case we need to get t on the LHS (left hand side) of this equation in order to find an expression for t . An expression for t just means, what does t equ...
CF
Answered by Catriona F. • Maths tutor
2285 Views

A triangle has vertices A(-3,5), B(7,9) and C(2,11). What is the equation of the median that passes through the vertex C?

First we can to start by making a sketch of the triangle since it may be easier to visualise the problem. Since the median of a triangle is a line that joins a vertex to the midpoint of the opposite side, we...
HR
Answered by Harry R. • Maths tutor
6063 Views

You and your lab partner have isolated a strand of DNA which you wish to amplify. You decide to carry out a polymerase chain reaction. Describe the 3 main temperature changes that occur and what key events happen at these stages.

The polymerase chain reaction (PCR) involves many cycles of heating and cooling in order to amplify a section of DNA. You initially heat the DNA to 92 C : this denatures you double-stranded DNA so that you h...
AA
Answered by Amy A. • Biology tutor
1270 Views

How do I know which verbs take être in the passé composé.

Well, the easiest way to remember this is...For almost all non-reflexive verbs, you will use 'avoir' rather than être. There are however, some exceptions. A particularly useful way of remembering which ones ...
MF
Answered by Marc F. • French tutor
1763 Views

Describe the impact on a developed donor country as a result of an increase in migration

One benefit to Poland’s population reducing due to migration to the UK would be that it relieves pressure on local services such as healthcare and schools. This means that they would have more money to evenl...
LM
Answered by Lily M. • Geography tutor
2092 Views